Amazon EC2 Auto Scaling now produces predictive scaling policy forecasts 4x per day, up from 1x per day prior to now. Reducing our forecast interval from 24 hours to 6 hours produces more accurate predictive scaling policies that quickly adapt to changing demand trends. All customers will benefit from this new default for predictive scaling. Customers use predictive scaling policies to scale out the capacity of their Auto Scaling groups based on forecasted demand, improving application availability, and alleviating the need for costly capacity buffers to accommodate spikes in demand.
Source:: Amazon AWS